Armored cement.



No. 821,569. PA-TBNTED MAY 22, .1906.

ARMORED CEMENT. APPI IGATION FILED JUNE 28, 1905.

ubentoz witnesses atknnu,

' ripectlve View or the ointler or stirrup, and

-' used in the construction of a floor or pavewhich are armored tl'sr'ougll their rusty or beam, 50.,

We. l. 623

it known i l 1 dent of llultimo have inre provcmen o ml following is This e orcon \t structon of ln'il' lg mwrnente, tc.

rhemneot of. my invention to i an exceedingly cheap and simple L 7 construction in a the gn'etlcl'crntneal cetinnttcrl are 13 1c 'pllelf or o e121, Etc, 2 the once may be, l'or the rm o supposedly {tr ideal Int-o elcrnen centers with it twmll oar of iron or etcol a desirable slut-pl; can! in such lengtlw that .l connectog oi' tho "various lnne mleptml to form a continuous permanrlIc::lztr l"4,,tl Will he stagger-oil with Pearl-cant lothe connections of l l llltl the bztru lormin the other rmlo in tho tin-r It surroundc end eup oorted alt-prelim m'mlneu motmm l ltntlcro on m the mac ol' 4; p'llo constructi m of the lnmler enzl stirrupe Minis l consfsting; of it smell tangle wltll n re understood that tl. en'lbotlietl in the cenmn 1 or concretml HHLRS. With the-1o object-2; In t" ,w and suelit or may llcre' mneni'mpecr my in F911 tlon consists in the pmtculnr ounetruclion of ,w a e rious ports and in the niwel nmnner of cone bination and urrengcment of said gimme, all oi? Wh'ch will be more lolly (leccrllml, ml spo olfirelly polntcll out in the appcndingr clztin're.

In t} e drawings Fm-mung :1 part of th poo.- fioeton, :BIgnre l in :1 seotonel few Hint-trot ing it portion of :1 structure comprising; n pl lor, e locem, and the lloozn l 22 is gt horizontal sectional View of the pjllcr. Fig. 3 is a side elevation of the pillar. Pg. 4 is a perlig. 5 is e, eectionol View of a slab eur as is Inent.

Referring by numerals to the drawings, It represents the pillar the beam, and 3 the flooring, the main portion ol. each being constructed of cement on concrete armored in accordance with. my invention. The pillar l u t on no uzzl distance apart, the numin meortling to the estimated or Al elltlll'l'lt. ln the oalculntionof st 11 .l divide the pillor into rs and so place the rods that in the centers of the reopen tech rod of number of or mnnected at 'tlULlI meow-tire mule my croclrcts, as shown at "i, sucl'z mectons l) rug: ggered With a construction to he found in the .ol mmltion. .ln moth the pillars 11ml the beunas l. employ it special design of a hinder or wllcn used in. connection with a lmnn wrlmgjrs better known as e otirrup. ll'tS bowler or elirrup 7 conclof' e rod bent form it rectangle Wlth'n a rectangle, as

ehown in Fig. l, the arrangement betlutt it 'will Wind tour times in the pillar or beam inclosing the pen Mal-er or tension rode, These binders ups are placed apart at o rlletance ecmg to the cqulrelnents of the estimated myth of the ollor or bemn and are altcrwel y crossed, clearly shown in Fig 1.

lo the conetrijctionof the flooring", ceiling, or vesnent .l: employ at prepz'lretl slob 8, having 1 l) and annexed by e serfee of rods ll), mtrymg in nun'xber oncoming to the s ze. The rods 10 have arms; 11, which project be- Kl the aloe and are adopted to engage the ommwr rls 1:2. Theseelebs, together with Elnte=1 .-ro le supporting the some, are embed m cement or concrete, as clearly elurn in t g. l.

some cases it may be found (lesFreble to form a flooring with tonsfowrods placed at equal distances apart, and when so formed l cntiiuutc the strength by units orelenwnts and plmo the tension-rods so that they will be in the center of each element.

llniving thus described the various features of my ir entlon, What I clzivlm to be new, and. (lest in secure l) v' Letters Patent, is

1. .ln an inwcntkm ol the class described, 11- scrlee or reds: formed by at number cl? short oars, croclwts connecting the bars, the con-- nectlone being staggered, binders or stirrups at an equal dFetanoe apart throughout the length of the rode, the said lrinders or stir- -rnps consisting of :1- bar bent to form a rectangle within a rectangle, substantially as specified.

of tne other rods out that the tomato-rattle 6 are in 2. In an invention of the elm described, :i series of rods l'ormed by a number ol short burs, crochet eonneetiombetween the bars, the connectiom being staggered, 21 series tl' binders or stirrups arranged alternately with respect *1) their free ends at regular interrnl apart lltlt)LlZltt Ul the length of the rods, the said binders or bent to l'orm a rPUlHltglC within a reetunglev "rup corms-ting ol' it bur.

and cement or eonerete int-using the entire structure, substantially 21S specifiedv S. In an invention ol' the class described, a pilla consisting of it series ol' rods lornted b a number of short burs connected by croel ets, the eonneetfons in the rods being staggered, binders arranged at intervals throughout the length of the pillar, the binder eonfilfililli ol' it rod bent to form 21 reetztngle \Yitlk in u reetnngle, eement messing the structure. :1 beam comprising :1 series of tension-rods l'ormed ol r hort burs, crochet connections between the burs, the (-onnectioiw beng staggered stlrrups .neloszng and supporting the tension-bur and said stlrrups consisting of :1 

